NINGBO SUNWELL SEALING MATERIALS CO., LTD is one of the biggest
sealing and heat preservation products manufacturers in China.
SUNWELL is a professional manufacturer engaged in the research,
development, production, sale and service of Metal Gaskets,
Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets,
Sealing Equipments, Insulation Products, Hydraulic Sealing